...Meaning that you, Jessie, can register an LLC called Jessie’s Ventures LLC. Once registered, an LLC can just do business under its own name, without bothering to get a DBA....
(a) You made a typo in the card number, CCV code, expiration date, name or address;
(b) Your card balance is too low;
(c) Issuing bank has declined this transaction for some other reason related to your account.